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with the samples incubated for dif- 

 ferent periods of time. The maxi- 

 mum increase in noncoagulable ni- 

 trogen, which occurred in the sam- 

 ple incubated for 100 days, amounts 

 to 3.184 per cent, while the corre- 

 sponding increases in total soluble 

 nitrogen amount to only 1.005 per 

 cent, so that the transformation of 

 insoluble muscle protein into solu- 

 ble forms was only about one-third 

 as great as the change of soluble 

 coagulable protein into noncoagu- 

 lable forms. 



Proteose nitrogen. — There is a 

 comparatively small amount of 

 proteose nitrogen present in any of 

 the samples. The most rapid in- 

 crease in this constituent took place 

 in the sample incubated 7 days, 

 while the sample incubated 64 days 

 shows the greatest increase. The 

 sample incubated 100 days contains 

 less proteose nitrogen than that in- 

 cubated 7 days. 



Amino 7vltrogen.— The changes 

 in amino nitrogen will be discussed 

 in connection with Table 10, where 

 they are shown more clearly. 



Phosphorus compounds. — The 

 changes in the soluble phosphorus 

 compounds will be discussed in con- 

 nection with Table 11, for reasons 

 that have already been indicated. 



Table 10 shows the distribution 

 of nitrogen and phosphorus com- 

 pounds in the various samples re- 

 ferred to 100 parts of oach constit- 

 uent in the fresh material. 



Total nitrogen. — As has been pre- 

 viously noted, there are some slight 

 and irregular changes in this con- 

 stituent,* which are apparently 

 without .significance. 



